Media Resources

Audio (free)

Be sure to read the fine print for copyright issues before using audio.

Freeplay Music
Free Media Useful for Your Web Pages Includes sound effects, music, photos, etc.
CCMixter

Audio (not free)

Soundsnap 5 free sounds a month with upgraded membership options
Soundzabound Royalty free music for education. Subscribe and/or purchase CD's.

Create Your Own Music

JamStudio has a grant available for classroom use.
Myna is similar to Garage Band, but available online.

Sounds

Use a MP3 recorder and record your own! Upload and edit in Audacity.
Partners in Rhyme Sound effects
freeSFX Sounds